Stock Footage - Welland canal lock gates.

Massive lock gates in the Welland canal. Ontario, Canada. The Welland Canal is a ship canal in Canada that extends 42 km (27.0 miles) from Port Weller, Ontario, on Lake Ontario, to Port Colborne, Ontario, on Lake Erie. As a part of the St. Lawrence Seaway, this canal enables ships to ascend and descend the Niagara Escarpment and to bypass the Niagara Falls.